MKVIS

AcronymDefinition
MKVISMauna Kea Visitor Information Station (Hawaii)
References in periodicals archive ?
Webley began their series of top break revolvers circa 1887 with the MKI and continued revamping it until the MKVI appeared in 1916 midway through World War I.
While my opinion is the Webley MKVI .455 was not the best combat handgun of its day, it's not the worst either.
Caption: Webley MKVI .455 as adopted by the British in 1916.